What the title says. Quad what do I do now? Thing **** near melted through the fuse box so I unhooked everything and now no start and P1688 "Pump computer failure". VP is 9 months old! Truck was running great yesterday wasnt even using the Adr and today truck is dead in the water. And I'm XXXXXX

 

Sorry to hear that. I think I've read about this issue before, try a search. I remember there seemed to be a fix.

 

This is like a bad dream

 

Call Adrenaline and see if they can cover it on their dime. Dang lucky that you caught it in time.

 

**** I was looking into buying one of these but the more and more I read and hear...........um I am begining to say NO

 

If my IP got taken out as a result of this I will be beyond livid. I cant get the code to clear and truck aint starting and I ran the batteries down now. Tommorrow I am gonna borrow a VP tester and see then call Quad.

 

E bunger,

My VP44 just died fridy 9/12. It sure does suck . No warning just quit. Had to get towed home. Had my nieghbor help me tow it with a chain into my back yard by my shop the next morening. Im just now starting to mellow out. I was stressin it. My new vp his showing up tommaro ups from Midwest fuel injection. Spent a hole day calling around to find where to get a vp. Got the old one out and things cleaned had a few brews and ready to install. While waiting I built my own big line kit with 6an x 3/8 90 degree pushloks etc from my local hydrulic shop. My LP is good was getting 13-14 psi

Removal is a piece of cake, useing the gear puller to get the gear of was the only scarey part, worried about breaking some thing, but after putting some kroil penetrating oil on the shaft it poped right off

 

Sorry to hear that! Just to be clear, you disconnected the MAP and Datalink connections from the Adrenaline, correct?'

By the far the worst burned of any I've seen...

 

I tried starting it with ADR unplugged from harness and I hope that is what set the code. But yeah after the smoke cleared I completly unplugged harness from truck and have everything back stock and still no start.

 

Thanks GSP but I already R&R'd my VP 9 months ago with a SO II pump. Believe me I wasnt do for a pump.

 

Out of curiosity how long have you had the ADR. I think they have this problem fixed. I was told they have changed the resistor to withstand more abuse.

 

I wanna say March or so. It was quite awhile before the Pulse was available but I didnt have to send mine in for the Pulse to work.

 

There is good news and bad news with this. I was going to make my own post tomorrow or the next day but, now is a good time!

We are 1 maybe 2 days away from doing a mandatory software update on the Adrenalines. We finally figured out what was happening, what causes it, and how to prevent it.

So in short, here is how this works.

This first part I am not sure what exactly causes it but, we figured out what it does and how to replicate it. First the pump has a huge voltage spike on one of the pulses. Not sure how exactly this happens, if this is a sign of something wrong with the VP, if it is a sign of a VP going bad or just an anonomly that takes place once every few million cycles on the pumps?

Anyhow this severe spike essentially hammers a pin on our microcontroller and causes it to go to ground, which pulls the pump circuit to ground. As you have probably guessed this causes a direct short on the board. Once this is in this state just turning the key on will cause the board itself to implode. You don't have to start it or anything, just leave the key on. The truck obviously won't start because it is being pulled to ground and the pump is not firing injectors. It is normal for the solenoid to be turned to ground to get it to open so this is not something abnormal for the pump other than the fact that it gets held to ground and is never allowed to fire.

Now, as bas as your box is melted you must have left the key on for a LONG time or tried to start it with the box on it for a LONG time in order to get it in that state.

It takes approximately 15 seconds to crack the power resistor in this condition and approximately 60 seconds to turn anything on the board black. To melt it that bad you had to do it for a LONG period of time.

Now, I have 27 of these out of all the Adrenalines shipped (over 3700 as of today). I have them from barely cracked, to burned prety bad but, nothing like yours. Because of these we have been trying to figure out exactly how this happens and so that is why we have been testing on this a LOT.

We took our truck and were manually making it cause the spikes and we were able to reproduce this issue. We have done this over 100 times on our truck and even let it cook just to see how long it takes to get certain amounts of damage.

The good news is that being pulled to ground should have no affect on your pump. As long as you tried to start it, you may have emptied it of fuel and may have to bleed the lines though. Everyone else disconnected the box and fired the truck off immediately but, just based on the damage I know you were in the key on or start position for a LONG time so it is probably dry on fuel for the moment.

The bad news, you Adrenaline is obviously fried and worthless. Don't even send that nasty thing back, throw it in the garbage!! We will have to send you a new one.

The good news is that your new one will come with software that will make this impossible to happen ever again! The way the pump control is on our boards we can just filter this and insure that we ignore these spikes and they don't affect us!

As you can tell that 28/3700 is not many so it took us a little while to figure out what was happening but, once the software is implemented that number will stand right where it is at.

I have an idea why some of the "old comp" boxes failed now though. We did ours a little different obviously to allow us more pump control. I am assuming they got these odd spikes as well but, instead of it affecting 1 pin it probably just hammered the whole controller which is why they would just randomly die or just randomly do some weird stuff!

I am wondering if we are learning to see early signs of VP's going bad though? In otherwords if we can detect these anomolies or their frequency I wonder if we could predict VP failure? I have probably recorded 10,000,000 VP pulses and never actually seen a pump do this on its own. I have seen them recorded in a log we keep on the processor but, that just records a peak value. Just makes me wonder if we are on to something?? The only thing that shoots that down is that of the 27 boards we have none of the owners have had any VP trouble to date that I know of?

Long story short, call tech support, tell them what happened, tell them I said you don't need to mess with getting that nasty thing back to us and we need to send a new one out!

 

If you have a code reader, you may want to clear the code before trying to start. Or pull the batteries for a while to clear it. I think I've heard of instances where the presence of the code in the ECM kept the truck from starting.

Worth a shot...

 

So Quad, does this mean all of us are going to need to send in our boxes to get this new software???? Just wondering cause ive had my box since march..